call-graph-profile.test
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## This test checks how we handle the --elf-cg-profile option.
# RUN: yaml2obj %s -o %t.o
# RUN: llvm-readobj %t.o --cg-profile | FileCheck %s --check-prefix=LLVM
# RUN: llvm-readelf %t.o --cg-profile | FileCheck %s --check-prefix=GNU
# RUN: llvm-readobj %t.o --elf-cg-profile | FileCheck %s --check-prefix=LLVM
# RUN: llvm-readelf %t.o --elf-cg-profile | FileCheck %s --check-prefix=GNU
# LLVM: CGProfile [
# LLVM-NEXT: CGProfileEntry {
# LLVM-NEXT: From: foo (1)
# LLVM-NEXT: To: bar (2)
# LLVM-NEXT: Weight: 89
# LLVM-NEXT: }
# LLVM-NEXT: CGProfileEntry {
# LLVM-NEXT: From: bar (2)
# LLVM-NEXT: To: foo (1)
# LLVM-NEXT: Weight: 98
# LLVM-NEXT: }
# LLVM-NEXT: ]
# GNU: GNUStyle::printCGProfile not implemented
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_DYN
Sections:
- Name: .llvm.call-graph-profile
Type: SHT_LLVM_CALL_GRAPH_PROFILE
Entries:
- From: foo
To: bar
Weight: 89
- From: bar
To: foo
Weight: 98
EntSize: [[ENTSIZE=<none>]]
Symbols:
- Name: foo
- Name: bar
## Check we report a warning when unable to get the content of the SHT_LLVM_CALL_GRAPH_PROFILE section.
# RUN: yaml2obj %s -DENTSIZE=0xF -o %t2.o
# RUN: llvm-readobj %t2.o --cg-profile 2>&1 | FileCheck %s -DFILE=%t2.o --check-prefix=LLVM-ERR
# RUN: llvm-readelf %t2.o --cg-profile | FileCheck %s --check-prefix=GNU
# LLVM-ERR: CGProfile [
# LLVM-ERR-NEXT: warning: '[[FILE]]': unable to dump the SHT_LLVM_CALL_GRAPH_PROFILE section: section [index 1] has an invalid sh_entsize: 15
# LLVM-ERR-NEXT: ]
## Check we report a warning when unable to dump a name of a symbol.
# RUN: yaml2obj %s --docnum=2 -o %t3.o
# RUN: llvm-readobj %t3.o --cg-profile 2>&1 | FileCheck %s -DFILE=%t3.o --check-prefix=LLVM-BROKEN-SYM
# RUN: llvm-readelf %t3.o --cg-profile | FileCheck %s --check-prefix=GNU
# LLVM-BROKEN-SYM: CGProfile [
# LLVM-BROKEN-SYM-NEXT: CGProfileEntry {
# LLVM-BROKEN-SYM-NEXT: From: A (1)
# LLVM-BROKEN-SYM-NEXT: warning: '[[FILE]]': unable to read the name of symbol with index 2: st_name (0xff) is past the end of the string table of size 0x5
# LLVM-BROKEN-SYM-NEXT: To: <?> (2)
# LLVM-BROKEN-SYM-NEXT: Weight: 10
# LLVM-BROKEN-SYM-NEXT: }
# LLVM-BROKEN-SYM-NEXT: CGProfileEntry {
# LLVM-BROKEN-SYM-NEXT: From: <?> (2)
# LLVM-BROKEN-SYM-NEXT: To: B (3)
# LLVM-BROKEN-SYM-NEXT: Weight: 20
# LLVM-BROKEN-SYM-NEXT: }
# LLVM-BROKEN-SYM-NEXT: CGProfileEntry {
# LLVM-BROKEN-SYM-NEXT: From: (0)
# LLVM-BROKEN-SYM-NEXT: warning: '[[FILE]]': unable to read the name of symbol with index 4: unable to get symbol from section [index 3]: invalid symbol index (4)
# LLVM-BROKEN-SYM-NEXT: To: <?> (4)
# LLVM-BROKEN-SYM-NEXT: Weight: 20
# LLVM-BROKEN-SYM-NEXT: }
# LLVM-BROKEN-SYM-NEXT: ]
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_DYN
Sections:
- Name: .llvm.call-graph-profile
Type: SHT_LLVM_CALL_GRAPH_PROFILE
Entries:
- From: 1
To: 2
Weight: 10
- From: 2
To: 3
Weight: 20
- From: 0x0 ## Null symbol.
To: 0x4 ## This index goes past the end of the symbol table.
Weight: 20
- Name: .strtab
Type: SHT_STRTAB
Content: "0041004200" ## '\0', 'A', '\0', 'B', '\0'
Symbols:
- StName: 1 ## 'A'
- StName: 0xFF ## An arbitrary currupted index in the string table.
- StName: 3 ## 'B'